noun
copy holder; document stand
A stand or holder used to prop up papers or a manuscript for typing, data entry, or reading. Common in office and computing contexts.
タイピングのときは原稿台に原稿を置きます。
When typing, I place the manuscript on the copy holder.
noun
scanner glass; copier glass
The flat glass surface of a scanner or copier where documents are placed for scanning or copying.
原稿台に原稿を伏せて置いて、スキャンを開始してください。
Place the document face down on the scanner glass and start scanning.